sng | a specialized markup language for representing PNG contents | Mehr ...
SNG (Scriptable Network Graphics) is a minilanguage designed specifically to represent the entire contents of a PNG (Portable Network Graphics) file in an editable form. Thus, SNGs representing elaborate graphics images and ancillary chunk data can be readily generated or modified using only text tools. . SNG is implemented by a compiler/decompiler called sng that losslessly translates between SNG and PNG.
